diff --git a/configure.ac b/configure.ac
index 7145720..50d0ef4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,7 +29,7 @@ AC_ARG_WITH(discount,
 			[  --with-discount=DIR    discount directory ],
             ,[with_discount="/usr"])
 AC_MSG_CHECKING(for discount directory)
-if test -e $with_discount/include/*/mkdio.h; then
+if test -e $with_discount/include/mkdio.h -o -e $with_discount/include/*/mkdio.h; then
     discount_dir=$with_discount
     AC_MSG_RESULT(DISCOUNT found!)
 else